package day05;

import java.util.Scanner;

//随机加法运算器
public class Addition {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int score = 0;
        for(int i=1;i<=10;i++){  //10次
           //1)出题  2）答题  3）判题
            int a = (int)(Math.random()*100);  //加数a（0到99）
            int b = (int)(Math.random()*100);  //加数b （0到99）
            int result = a+b;
            System.out.println("("+i+")"+a+"+"+b+"=?"); //1)出题

            System.out.println("算吧！");
            int answer = scan.nextInt(); //2)答题

            if(answer==result){ //判断
                System.out.println("答对了");
                score += 10;
        }else{
                System.out.println("答错了");
            }
        System.out.println("总分为："+score);
    }
        for(int num=1;num<=9;num++){
            if(num==4){
                break;
            }
            System.out.println(num+"*9="+num*9);
        }
}
}
